package section_03.returnArray;

import java.util.Arrays;
import java.util.Random;

public class IceCream {
	private static Random rand = new Random(47);
	static final String[] FLAVORS = { "Chocolate", "Strawberry", "Vanilla Fudge Swirl", "Mint Chip",
			"Mocha Almond Fudge", "Rum raisin", "Praline Cream", "Mud Pie" };

	public static String[] flavorSet(int n) {
		if (n > FLAVORS.length)
			throw new IllegalArgumentException("Set too big");
		String[] result = new String[n];
		boolean[] picked = new boolean[FLAVORS.length];
		for (int i = 0; i < n; i++) {
			int t;
			do
				t = rand.nextInt(FLAVORS.length);
			while (picked[t]);
			result[i] = FLAVORS[t];
			picked[t] = true;
		}
		return result;
	}

	public static void main(String[] args) {
		for (int i = 0; i < 7; i++)
			System.out.println(Arrays.toString(flavorSet(3)));
	}
}
